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Re: Laptop keyboard and touchpad don't work after upgrading fromlinux-image-4.19.0-9-amd64 to any later kernel

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David wrote:
> I suggest to also test what happens if you start the system without
> using lightdm or X.

I tried this with three versions of the kernel: linux-image-4.19.0-9-amd64,
linux-image-4.19.0-10-amd64, and linux-image-4.19.0-11-amd64 .

Under all three versions, the built-in keyboard worked OK when booting
into text mode.  I could log in and issue commands.

Under all three versions, I also said "cat /dev/input/mouse0" (as root),
moved my finger around on the touchpad, and got various characters on
the screen whenever I moved my finger.  So the touchpad appeared to be
working as well.

> One way to do this is to boot into multi-user text mode.

I have the default configuration of sysvinit, which boots to runlevel 2
and starts everything (networking, X, etc).  /etc/init.d/lightdm does
tell me that if the word "text" is on the kernel command line, it won't
start lightdm.

This machine is configured for dual boot, so I already had grub
configured to give me a "which OS?" menu at boot time.  From that menu,
I just appended " text" to the kernel command line, and booted; that
got me into multi-user text mode.

Matt Roberds

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Thread

Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel Matt Roberds <mroberds@att.net> - 2020-10-21 02:10 +0200
  Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel David <bouncingcats@gmail.com> - 2020-10-21 02:50 +0200
  Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel Matt Roberds <mroberds@att.net> - 2020-10-21 04:00 +0200
    Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel David <bouncingcats@gmail.com> - 2020-10-21 05:00 +0200
      Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel David <bouncingcats@gmail.com> - 2020-10-21 05:10 +0200
      Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel [SOLVED] Matt Roberds <mroberds@att.net> - 2020-10-21 06:50 +0200
        Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel [SOLVED] <tomas@tuxteam.de> - 2020-10-21 09:50 +0200
          Re: Laptop keyboard and touchpad don't work after upgrading  fromlinux-image-4.19.0-9-amd64 to any later kernel [SOLVED] David <bouncingcats@gmail.com> - 2020-10-21 10:30 +0200

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